N-{8-[(E)-(Dimethylamino)methylidene]-2,5-dioxo-5,6,7,8-tetrahydro-2H-chromen-3-yl}benzenecarboxamide CAS 341966-17-4
| CAS No. | 341966-17-4 |
| Molecular Formula | C19H18N2O4 |
| Molecular Weight | 338.36 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of N-{8-[(E)-(Dimethylamino)methylidene]-2,5-dioxo-5,6,7,8-tetrahydro-2H-chromen-3-yl}benzenecarboxamide is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
N-{8-[(E)-(Dimethylamino)methylidene]-2,5-dioxo-5,6,7,8-tetrahydro-2H-chromen-3-yl}benzenecarboxamide (CAS 341966-17-4) is a high-purity analytical reference standard with the molecular formula C19H18N2O4 and a molecular weight of 338.36 g/mol.
Structurally, N-{8-[(E)-(Dimethylamino)methylidene]-2,5-dioxo-5,6,7,8-tetrahydro-2H-chromen-3-yl}benzenecarboxamide (C19H18N2O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 338.36 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), N-{8-[(E)-(Dimethylamino)methylidene]-2,5-dioxo-5,6,7,8-tetrahydro-2H-chromen-3-yl}benzenecarboxamide meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C19H18N2O4 |
| Molecular Weight | 338.36 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 2 |
Recommended Standards
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